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Progress Report on Closing the Attestation Gap

Special Webinar Session

Progress Report on Closing the Attestation Gap

Monday, December 7, 1:00pm-2:00pm EST

Sponsored by:



Enterprises, Contact Centers, and Voice Service Providers are often not in a position to obtain their own SHAKEN certificate.

If they get their phone numbers from multiple service providers, their calls may not receive the highest attestation, and can be inadvertently blocked or mislabeled.

Carriers have various options to address these challenges including TN Database, Delegated Certificates or a STIR certificate.

These approaches all rely on the originator of the call and the telephone number to be trusted by other members of the ecosystem.

Join this session to understand:

  • How can carriers enable these customer to receive favorable call treatment?
  • What approaches are gaining traction?
  • How can carriers be sure they are admitting trusted players into the ecosystem?

Moderated by Henry Hayter, Principal, Product Management, Neustar.

Panelists include Patrick Cook, Lead Product Developer for STIR/SHAKEN, Inteliquent; Philip Linse, Director of Public Policy, Lumen, and Chair, ATIS Non-IP Call Authentication Task Force and SIP Forum Director; Jonathan Rosenberg, Chief Technology Officer and Head of AI, Five9; and Georgi Minkov, Director of Voice Engineering, GTT.

Henry Hayter

Henry’s background spans 25 years of working in technical and business roles for large technology firms in the telecommunications industry. Prior to joining Neustar, Henry spent 20 years working in product management, strategy, and solutions engineering roles in the mobile roaming, voice, and messaging ecosystem. Henry has also worked for each of the top 4 mobile operators in the United States in various technical leadership roles.

A perpetual learner, Henry has collected many professional certifications and is a frequent contributor and speaker to industry organizations, trade groups, and special interests. He has contributed to numerous technical and commercial standards over the years as well as providing legislative lobbyist support and expert witness consultation in patent law cases in the telecommunications arena.


Patrick Cook

Patrick is Lead Product Developer for STIR/SHAKEN at Inteliquent. Prior to joining Inteliquent, Patrick worked in engineering positions at Broadvox, where he supported large VoIP Carriers, as well as at Barracuda Networks supporting enterprise PBXs. He uses the knowledge of the challenges facing both providers and enterprises to design products that meet real customer needs. He previously was a Product Developer for Voyant where he assisted with the design and creation of Voyant Enterprise SIP Trunking.


Philip Linse

Philip Linse, Director of Public Policy represents CenturyLink in various industry standards forums, and was recently named as the Chair of ATIS’s Non-IP Call Authentication Task Force.  He also Co-chairs the FCC’s North American Numbering Council’s Number Administration Oversight Working Group, Nationwide Number Portability Working Group, and serves on the Call Authentication Trust Anchor Working Group.  Mr. Linse also led the development of the FCC’s Reassigned Numbers Database technical requirements. In addition, he is CenturyLink’s policy subject matter expert on robocall mitigation and the technology transformation as the result of the ongoing transition to IP technology.  Mr. Linse’s background spans over 20 years in telecommunications consisting of, intercarrier and vendor contract negotiations, economic analysis and modeling, outside plant engineering & planning, and subject matter expert on network issues associated with interconnection, switching, signaling, and signaling databases.  Philip holds a Bachelors degree from the University of Northern Iowa.


Jonathan Rosenberg

Jonathan Rosenberg is CTO and Head of AI for Five9. In that role, he sets their product and technology strategy overall, in addition to direct oversight of its AI efforts. Prior to that, he was the Vice President and Chief Technology Officer (CTO) of the Collaboration Technology Group (CTG) at Cisco.  In that role, he was responsible for the product and technology strategy for Cisco’s multi-billion dollar collaboration portfolio. He was the principle behind Cisco Spark, Cisco’s new cloud architecture and associated client software and hardware for team collaboration, meetings, and unified communications.


Georgi Minkov

Georgi Minkov serves as Director of Voice Engineering at GTT.



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